2351091 has 16 divisors (see below), whose sum is σ = 3283200. Its totient is φ = 1495008.

The previous prime is 2351053. The next prime is 2351099. The reversal of 2351091 is 1901532.

It is not a de Polignac number, because 2351091 - 2¹⁰ = 2350067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2351099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6370 + ... + 6728.

It is an arithmetic number, because the mean of its divisors is an integer number (205200).

2^2351091 is an apocalyptic number.

2351091 is a deficient number, since it is larger than the sum of its proper divisors (932109).

2351091 is a wasteful number, since it uses less digits than its factorization.

2351091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 2351091 is about 1533.3267753483. The cubic root of 2351091 is about 132.9708606334.

It can be divided in two parts, 235 and 1091, that added together give a triangular number (1326 = T₅₁).

The spelling of 2351091 in words is "two million, three hundred fifty-one thousand, ninety-one".